After launching it by accident last week, Valve Corporation has officially flipped on the switch for Steam TV, the company’s new service for streaming game videos.

At present, it’s only got a single live broadcast available: the prestigious Dota 2 tournament, The International, which is taking place until August 25 at the Rogers Arena in Vancouver, Canada.

In addition to the video stream, the web app displays your list of friends from Steam, and lets you tune in either on your own or with a group of pals, with your own private chat room alongside the broadcast.

The company noted in a blog post that it plans to extend streaming support to other games available in the Steam store through its Steamworks API.

Given that Steam already has a large audience of gamers looking to buy titles, and play and chat with friends, it makes sense to extend the platform to take up even more of their time with broadcasts.

But Valve has a lot of catching up to do: Twitch already has more than 15 million daily active users, and the Amazon-owned platform is reportedly trying to woo major YouTubers with multi-million deals. There’s also YouTube Gaming, and Microsoft Mixer to worry about – albeit to a lesser degree, as neither of those services have really caught on in the way Twitch has.

It’ll be interesting to see how Steam TV develops over time, and whether it can build up a community that will shop, chat, and stream all in one place. You can tune in right now with your Steam account to get a taste, while The International is on through this week.

In the aftermath of a school shooting that claimed the lives of 14 students and three staff members, students like Emma González, David Hogg, and Cameron Kasky soon became household names. They managed to snag the attention not just of their peers, but the populace as a whole as they toured the country in a push for common sense gun regulation. The right took notice.

As has become commonplace on social media, partisan politics got in the way of actual debate when National Rifle Association supporters began circulating an image of González ripping apart the United States Constitution.

The original image (left) versus the doctored image that went viral (right)

The image, as it turns out, was a fake.

Faked images aren’t the only hurdle in stopping the spread of misinformation, but they have, in recent years, become a key vehicle in facilitating the spread of misinformation. For anyone looking for a technological fix, stopping the spread of false imagery is obviously a great place to start. While we focus on the YouTube‘s and Facebook‘s of the world, each of which are floundering in their fight against the spread of fake news, maybe it’s third parties we should be looking to for an answer.

Ash Bhat and Rohan Phadte, two UC Berkeley undergrads, think they have that answer, at least for spotting fake images. The duo recently developed a plugin, SurfSafe, that instantly checks photos against more than 100 trusted news sites and fact-checking organizations. The goal, of course, is to spot the fakes before internet users share them. The photo of González, for example, could have been snuffed out early on, before it was viewed, and shared, by millions. “The fake news we care about is the fake news that’s spreading virally,” Bhat told Wired. “If a piece of fake news is spreading, we’ll have seen it.”

He continued:

We want SurfSafe to become a solution that’s analogous to anti-virus software. We want to scan your news feed for fake news as you browse.

The solution is a simple one. When a user hovers over a photo, SurfSafe scans its entire database of digital fingerprints looking for a match. The algorithm quickly goes to work looking for the earliest instance of the image appearing on the internet. If it finds a match, it’ll surface the original image on the right side of a user’s screen. Users then have options to tag the image as Photoshopped, misleading, or propaganda — all of which will help train the algorithm as it goes.

The more people who use the plugin, the smarter it will get. Bhat says the average internet user often sees hundreds of thousands of images a day. The plugin saves the signature of all of these images, looking for subtle variations to the fingerprint, or hash, that accompany even minor edits.

If it’s able to attract a few hundred thousand users in its first year, its creators expect the database to contain more than 100 billion fingerprints.

It’s not a perfect solution, Bhat acknowledges this much, but it’s a good start.

The Undo Send feature in Gmail is a godsend for the keyboard clutzes among us who fire off emails too early. I can’t count the number of times I’ve used it to bring back messages that I hadn’t finished composing or attaching files to.

Now, Android Police has spotted the feature in Gmail’s Android app. It’s been around on the web and iOS versions for a long while, as well as in Google’s Inbox.

It isn’t clear exactly when it was introduced on Android – and whether it’s specific to a certain version of the app, or has been made available via a server-side change. But anyhoo, it’s here, and it works.

Once you’ve composed a message and hit Send, you’ll see a ‘Sending’ notification at the bottom of your screen, along with an ‘Undo’ button. You’ve got 10 seconds to tap on it and cancel the process; Gmail will then bring back the draft so you can properly finish what you started.

Unlike the web version, there isn’t an option to extend the time limit. Android Police noted that Google can supposedly ‘pull back’ messages sent to other Gmail users, while those on other services experience a short delay before they receive emails, and that’s what allows for this functionality.

In case the feature isn’t available on your device, you might have to wait a bit for it to be activated on your account, or you could try updating Gmail (here’s version 8.7 on APK Mirror) to the latest version.